Siphon-valve for closet-cisterns.



PATENTBD DEC. 17, 1907.

N. B. JOHNSON. SIPHON VALVE FOR CLOSET CISTERNS.

APPLIOATION FILED FEB. 1. 1906.

lit/2x11102- NELSON B. JOHNSON, OF WEBSTER, MASSACHUSETTS.

BIPHONJTALVE FOR CLOSET-CISTERNS.

Specification of Letters Patent.

Patented Dc. 17, 1907.

Application filed February 1.1906- Serial No. 298.961.

To all whom it may concern:

l ings 13.

Fitting up against a packing on Be it known that I, NELsoN B. J OIISSON, i the lower end of the outlet pipe is an enlarged a citizen of the United States, residing at W ebster, m the county of Worcester and head 15 of the flush pipe 16 which is fastened in place bv a connecting nut 14. The inlet State of Massachusetts, have invented a new i leg 17 of the siphon is threaded into a lug or and useful Si hon-Valve for Closet-Cisterns, boss 18 of the starting chamber.

of which the ollowing is a specification.

or siphon for a closet cistern.

The especial objects of this invention are, p

to provide a strong, sim lo and e'llicicnt form of closet flushing sip on, to comblne As shown l most clearly in Fig. 2, the lug 18 is located ThlS mventlon relates to a flushing device at one side of the center of the starting chamher so that the. starting rod 21 may extend centrally therein.

; The startin chamber is provided around 7 the siphon with a-starting. chamber in such way that a free outlet will be permitted through the starting chamber, to provide a water-seal or packing for the operating rod, and to provide an improved construction for controlling the amount of water and to secure a slow breaking action providing an after-Wash.

In the accompanying drawing, Figure 1 is i l l i l a sectional view of a closet cistern contain mg a device constructed accordmg to this mventlon partly broken awa Fig. 2 1s a lan view of the device, and F ig..3 is a detail ereafter referred to.

One especial object of. this invention is to provide a fixture for closet cisterns which will be entirely inclosed within the tank and which will not em loy any valves or packed joints liable to lea 'age.

In ordinary closet cisterns, various forms of valve seats and valves are employed and unless the valves fit their seats absolutely tightl considerable amounts of water are lost t ough leakage, I have avoided this by using a siphon which will permit the water to flow only at the desired times and which will be absolutely free from leakage. The flow of water through the siphon is preferably regulated to provide not only for delivering any desired amount of water, but alsofor securing a s ow stop ing act-ion providing what is termed the after-wash for refilling of a closet bowl.

Referring to the accompanying drawing 55 sured by the use of inside and outside packits upper en s with a marginal flarfilge 20 which will catch and retain a su cient :amount of water to form a water-seal or water-packing for preventing leakage or the entrance of air around the starting rod during the operation of the siphon. Formed integrally or threaded into the body portion of the starting chamber is an inside cylinder 21 which is. provided with a number of openings 22 permitting the upward flow of water when the siphon is in operation. Movably mounted in the cylinder 21 of the starting chamber is a disk or lifter 23 carried by a starting rod 24, which starting rod 24 is con nected inany ordinary way at its upper end to pull lever The cylinder 21 is provided at its upper end with a flange 210 for limiting the upward motion of the disk or piston 23.

In the operation of the parts as thus far described, when the lever 25 is operated to lift the starting disk, water will be forced up through an opening in the top of the cylinder 2] into the inlet leg of the siphon in sufficient volume to start the siphon in operation. The starting disk 23 will be moved up and will remain in the u er end of the inside chamber 21 and out o tihe Way of the direct flow of the water which will then pass through the openings 22 as indicated. by the arrows.- The flow of the water will hold the disk in thisposition while the siphon works. As above stated, the flan e 20 will trap suflicient water to water-sea the rod 24 during the action of the siphon. This in practice, I have found will provide a very efhcient construction for securing a discharge of water from a closet cistern. To control the flow of water, the return bend or body portion 10 of the siphon is preferably rovided with a rejection or lug 26 an extending down om the lug or projection 26 is a small air pi e 27.

Adjustably tting in the end of the air- 110 w 30 is threaded on the end of the air-pipe 27 j and is provided with a ring packing 31, as shown in Fig. 3, so that the pipe 29 can be i adjusted in the air-pipe 27. Also threaded into the lug 26 is a pointed screw 28, the end ofwhich serves as a throttle-valve for throttling the connection between the air-pipe 27 and the body portion of the siphon. When the valve 28 is wide open, the action of the siphon will be promptly interrupted, and a comparatively slight after-wash will be secured, but by closing the valve 28 to any desired extent,' any desired amount of throttling action may be secured which will delay the breaking of theaction of the si hon, causing the flow to be interrupted ra ually providing any desired amount of a ter-wash for refilling the closet bowl or other fixture. I regard this as a particularly important feature of my invention as it enables me to secure a perfect control of the siphon action.

Having thus fully described a construction embodying this invention, what is claimed as new and sought to be secured by Letters- Patent is 1. The combination witha siphon for discharging liquid from a tank, of a starting chamber connected with the short leg of the siphon, said chamber having an open-bottomed casing provided with an open top and communicating freely with the short leg of the siphon, and side passages also communicating freely with the short leg 9f the siphon, a lifting disk mounted in said casing, and means connected with the disk for raising it to force liquid through the open top of the casiiig and holding it raised above the side passages, whereby the liquid may flow through said passages when the disk closes the top of the casing.

2. In a fixture of the class described, the combination of ,a siphon, a starting chamber comprising a body portion, a bottom casing of smaller diameter extending up inside the body portion and having outlet openings into the portion of larger diameter, a lifting disk, and means for raising the lifting disk above the outlet openings so that the disk will be out of the way during the flow of water through the siphon.

3. In a fixture of the class described, the combination of a siphon, a starting chamber of larger diameter connected at one side of its center to the inlet leg of the siphon, a lifting disk in the starting chamber, and a rod t erefor extending up centrally through e 27 is a small pipe 29, the outer end of the body of the starting chamber at one side ch is bent upwardly, as shown. A nut of the inlet siphon leg.

4. In a fixture of the class described, the combination with a tank, of a siphon therein, a starting chamber connected with the short leg of the siphon and having a substantially closed top with a perforation therethrough,

a disk in the starting chamber, an operating rod for the disk passing freely and loosely through said perforation, and a flange on the top of the starting chamber for retaining suliicient water on the top thereof to supply the leakage through said perforation around the rod while the tank is being emptied by the siphon.

5. In a fixture of the class described, the combination of a siphon, a starting chamber connected at one side of its center to the inlet leg of the siphon, and comprising a body portion having a flange around its upper edge, a casing'of smaller diameter extending up inside of the body portion and connected therewith by outlet passages, a lifting disk mounted in the inside casing, and a rod for raising the lifting disk above the openings so as not to interfere with the flow of water while the siphon is in operation, said rod extending u centrally through the starting chamber at tlie side of the starting legof the siphon in position so that the water retained by the flange of the starting chamber will serveas a water-seal or packing therefor.

6. The combination with a siphon, of an air pipe extending down from a point near. the top of the long log thereof, said pipe having a U-shaped adjustable lower end fitting therein, whereby air may be admitted to the siphon when the level ofwater reaches the top of the' outside leg of the U-shaped end.

7. In a fixture of the class-described, the combination of a siphon having a projection or lug, an air pipe extending down from said lug, a pipe having an upwardly turned lower end fittin therein, and a throttling screw threaded into the lug transversely to the inlet of the air ipe for throttling the connection of the air pipe of the siphon to produce a gradual stoppin action.

In testimony whereo I have hereunto set my hand,in the presenceof two subscribing witnesses.

NELSON B. JOHNSON.

Witnesses:

C. F. WESSON, E. M. ALLEN. 

